tdf#84881: Add Windows implementation of timestamping of signature
tdf#84881: Add Windows implementation of timestamping of signature

Luckily doable with much simpler code than the horrible NSS and curl mess used
on Linux (and, sadly, OS X).

Basically only one new API call needed: CryptRetrieveTimestamp(). A few hours
of work, compared to about a week for the Linux case.

However, amusingly, it causes the same message in Adobe Reader as when using
the NSS code: "The signature includes an embedded timestamp but it could not
be verified". Sigh.

Change-Id: I98c973bd50b841d1ae3feb8a695bac29da538b6c

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core